TITLE:   GCN CIRCULAR
NUMBER:  40764
SUBJECT: The EP-WXT trigger 01709178990 is likely a flaring star
DATE:    25/06/18 01:33:37 GMT
FROM:    EP Team at NAOC/CAS <ep_ta@bao.ac.cn>

Y.-F. Liang (PMO, CAS), R.-Z. Li (YNAO, CAS), X.-L. Chen (YNU), H.-Z. Wu (HUST), X.-P. Xu and W.-M. Yuan (NAOC) on behalf of the Einstein Probe (EP) team:

The EP-WXT trigger 01709178990 at the time of 2025-06-17T20:58:00, is likely a stellar flare associated with GQ Lup (Orion Variable). The estimated flux of the flare is around 8 X 10^-11 erg/s/cm^2 in 0.5-4.0 keV, corresponding to an X-ray luminosity of around 2.2 X 10^32 erg/s.

Launched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).